Which unit measures potential difference?

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Study for Con Edison Test B – Gas Safety, Electrical Theory, and Job Procedures. Prepare with multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Which unit measures potential difference?

Explanation:
Potential difference is the electric pressure that pushes charges between two points. The unit for that pressure is the volt, which equals one joule of work per coulomb of charge moved. In a circuit, the voltage across a component governs how much current can flow, and you measure it with a voltmeter. Amperes measure current, not potential difference; ohms measure resistance; watts measure power. So the unit that measures potential difference is the volt.

Potential difference is the electric pressure that pushes charges between two points. The unit for that pressure is the volt, which equals one joule of work per coulomb of charge moved. In a circuit, the voltage across a component governs how much current can flow, and you measure it with a voltmeter. Amperes measure current, not potential difference; ohms measure resistance; watts measure power. So the unit that measures potential difference is the volt.

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